For people with a common genetic variation, researchers have discovered signs of the possible onset of Alzheimer's before a patient would be clinically diagnosed by a doctor.
In people with the ApoE4 gene variation, one previously implicated as affecting the likelihood of Alzheimer's, researchers have been able to pinpoint some signs of memory loss beginning in the person's mid- to late-50s -- without the patient having full-blown Alzheimer's disease or dementia.
"[One could argue] we really...Full Story